Turn any lowercase text into clean ALL CAPS. Great for headlines, acronyms and constants.
Turn lowercase text into ALL CAPS instantly. Free uppercase converter for headings, emphasis and code constants.
Convert Lowercase to Uppercase examples
Input
Output
quiet text that needs emphasis
QUIET TEXT THAT NEEDS EMPHASIS
How the convert lowercase to uppercase works
Paste the lowercase text.
Every character is uppercased with Unicode-aware mapping.
Copy the ALL CAPS result.
Rules and edge cases
Every lowercase letter is raised, including accented characters: straße becomes STRASSE and øre becomes ØRE.
Already capitalised letters, digits and punctuation are unchanged, so mixed text converts cleanly.
Line breaks and spacing survive, which matters when capitalising headings inside a longer document.
Frequently asked questions
Should I capitalise a heading in the text or with CSS?
Use CSS text-transform: uppercase for purely visual emphasis so the underlying text stays readable for screen readers and search engines. Convert the actual characters only when the destination has no styling.
Why is ß converted to SS?
Standard German has no single uppercase ß in general use, so Unicode maps it to SS. The capital ẞ exists but is not the default mapping.